No one truly knows what Phantoms are or where they come from. Their body seems be no different than that of an actual TF2 merc except for their transparent, and somewhat tangible bodies. Contrary to the name, these creature no threat to any player whatsoever due to their intangibility. This also means that other animals or even mercs can't harm them. The most they are capable of is mildly annoying other animals by following them where ever they go.
- Enable friendly mode on a server that makes you transparent.